As hinted at during the introduction of the Pixel Visual Core custom SoC, Android 8.1 is a thing. And from today it's not in the "coming soon" aisle anymore. Google has launched the first Developer Preview for Android 8.1, which is now available for the following supported devices: Nexus 6P, Nexus 5X, Pixel, Pixel XL, Pixel 2, Pixel 2 XL, and Pixel C. Download To get it, you can enroll one of those in the Android Beta Program and then wait for an over-the-air update which will install 8.1. Or you can manually flash a system image if you're into that kind of thing. This is one...
Source: https://www.gsmarena.com/android_81_developer_preview_is_now_available_for_pixels_and_nexuses-news-27921.php